These gaskets tend to suck. To aid the gasket in making a good seal I use HondaBond 4 (do not confuse HondaBond 4 with HondaBond HT which is silicone).


Personally I do not like silicone gasket maker and much prefer products like HondaBond 4, YamaBond or ThreeBond 1104. A product called "The Right Stuff" from Permatex is also similar. These sealants do not totally cure, remain flexible and will not contaminate sealing surfaces with silicone.


Do not over apply any gasket sealer. You only need enough to have skim coat on the surfaces..